Method of knitting



L. A. OLENA METHOD OF KNITTING Julyl14, 1925.

Filed Jan. 24I 1923 Patented July 14, 1925.

UNITED STATES I 1,545,845 PATENT OFFICE.v

LOUIS ALBERT oLENA, or BROOKLYLLNEW YORK.

METHOD F KNITTING.

Application ledJanuax-y 24,1923. Serial No. 614,556.

To all 107mm t may concern.'

Be it known that I, Louis ALBERT OLENA, a citizen of the United lStates, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Methods of` sinker during the enchaining operation.'

The present invention differs from and isv in certain respects an improvement over the invention referred to in that, instead ofsevering the loops to form the pile, the loops need not be wholly separated and the pile may be formed by the ends of vstrands or fibers projecting at the bends of the loops. These projecting ends are usually produced by tensioning the loops-over the sinkers or loop supports sufiiciently to break a portion of the fibers, which then, because of the tensioning and stretching of the material, stand out in the nature of a pile.

The accompanying drawing, forming part of this specification, illustrates asample of the fabric and a method of producing the same, Figure 1 being a perspective fragmentary and diagrammatic view of a piece of the fabric on an enlarged and exaggerated scale Figures 2 and 3, side views illustrating the action of the needles in` drawing the loops vdown over the sinkers so as to break the fibers of the.upper loops; Figure 4, a diagrammatic illustrating successive stages in the operation; and Figures 5 and 6, enlarged fragmentary side and edge views of a loop with .its projectingpile.

In Figure l the fabric is shown as knitted with loops 7 from the tops ofwhicli project the tufts of fibers 8. The loops are continuous and therefore add strength to the fabric while giving-the effect of a nap and the tufts projectling from the loops providethe edect of a pi e.

Figures 2, 3' and 4 illustrate how these results may be accomplished by knitting with two threads 9, 10, and by using a special form of sinker 11, having in addition to the usual thread supporting edge 12, an upper auxiliary edge 18 designed to support the upper thread 9 in the form of a loop 14 separated from and spaced above the loop 15 of the thread 10 supported on the lower edge 12.

The needle which draws these threads down over the supporting edges to form the two loops is indicated at 16 and is shown as of the latch type to partly effect and enablel the enchaining operations to take place Velow the sinker as at'17 in Figures 2 and,3. As the particulars of the enchaining constitute no part of the present invention this feature is not illustrated or described in detail, it being sufficient for this disclosure to understand that the enchaining` may be y effected in any usual or preferred manner when the needles descend to carry the loops down over the supporting edges of the sinkers. v IFigure 4 illustrates in successive steps how the needle in its downward movement first takes hold of the upper thread 9 and then' after` engaging the lower thread 10 carries both down to substantially the same level. In this action the upper thread is carried the greater distance and conse- .quently is placed under greater tension than the lower thread, so much so that the fibers of the upper loop will be stretched beyond their elastic limit and be ruptured or broken. The tension necessary to effect this result may be obtained by regulating the tension on the thread 9 and by spacing the sinkersv closer together than vhas been customary heretofore. This closer spacing of the sink- 1 ers also produces a more abrupt bending of the loops over the supporting edges and this facilitates and makes more positive the breaking action of the fibers.

It will be evident that by properly regulating the tension ,and other controlling effects the extent or proportion of breakage can be governed to obtain different Apile effects. At the present time the preferred practice is to break only sufficient of the fibers to provide a good pile and to leave the loops with sufficient tensile strength to reinforce the fabric. In pulling a loop over a supporting edge the fibers at the outslde of the bend are subjected to the greatest strain and these appear tobe the ones which break first. This, of course, is an advantage 1n that these outer fibers are free as-soon as they break to stand up and serve asthe pile of the fabric.v A

What I claim is:

. l. The method of producing aknitted pile -fabric which includes looping the thread of Ithe fabric` vover supporting means and tensioning the loops sufiiciently to break some of the fibers at the bends of the loops and cause the broken ends of the same to standout as a pile. i 2. The method of producing a knitted pile fabric which includes looping a thread of the fabric over a support with sufficientl tension .to break the fibers at the bend in the loop and thereby cause the saine to stand out V as apile.

3Q The method of producing a knitted pile fabric Which includes supporting a loop of the thread of the fabric Whileleffecting enchaining operations and straining the loop over the support beyond the tensile strength of its fibers to break the fibers and cause them to stand out as the pile.

4. The method of producing a knitted pile fabric which includes looping a thread of the fabric 'over a support and separating a portion only of the fibers of the thread at the bend of the loop to thereby provide a lloop carrying outstanding pile.

5. The method of producing la knitted pile fabric which comprises supporting a thread of the fabric in looped formation and v6. The method of producingl a knitted two fabricv which includes supporting threads in separated looped format-ion and partially rupturing one of the loops atthe bend therein While effecting the enchaining operation.

7. rEhe method of producing a knitted pile fabric which includes supporting two threads of the fabric at different levels and pulling both down to substantially the same level and thereby applying sufficient-tension to vthe thread of the higher level to break part only of the fibers of which the same is composed.

8. The method of producinga knitted pile fabric which includes the placing of the thread under an abnormal tension to cause 'a rupture of certain fibers therein When the loop is formed while effecting the enchaining operation.

In testimony whereof I affix my signature.

` LoUIs ALBERT oLENA. 

